Territory



(No Model.) 2 Sheets-Sheet; 1. F. A. PO-LKA.

GRAIN DRILL. No. 391,334. Patented 001;. 16-, 1888-.

QRR Me ooaa 9140c who z (No Model.) 2 Sheets-Sheet 2.

P. A. POLKA.

GRAIN DRILL.

No. 391,334. A ;7 n,1, Patented Oct. 16, 1888.-

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iiNrTnn STATES PATENT i Tries.

FERDINAND ALBERT POLKA, OF OAKES, DAKOTA TERRITORY.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 391,334, dated October 16, 1888.

Application filed April 24, 1888.

particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a grain-drill embodying my improvements. Fig. 2 is a vertical longitudinal sectional view of the same. Fig. 3 is a rear elevation, partly in section. Fig. 4 is a plan view. Fig. 5 is a detail view.

A represents a pair of longitudinal beams, which are connected at their front and rear ends by cross-beams B O.

D represents a longitudinal beam, which is arranged-midway between the beams A, connects the bars 13 C, and is adapted for the attachment of the tongue or pole. On the beams A are knees or standards E, which support a transverse hopper, F,the latter being arranged in two compartments, G, and each of the said compartments having its sides and ends inclined downward, as shown.

H represents a shaft, which is journaled in bearings in the beams A and under the beam D, and on the said shaft-are arranged a suit able number of circular disks or wheels, I, which are equidistant apart and have their peripheries beveled on opposite sides, as shown, whereby the saidwheels or disks are adapted to make furrows in the ground as the machine is drawn forward.

On the upper side of the beam O,and in line with the centers of the hopper-compartments G, are cylindrical cases K, each of which has one end closed and the opposite end open. Said cylindrical cases are connected to and communicate with the' lower sides of the hopper-compartments by means of flexible tubes L, and in the centers of the closed ends of the said cases is journaled a transverse shaft, M. The said shaft is connected to the shaft H by means of an endless belt, N.

Serial No. 271,664.

(No model.)

One end of the shaft M is provided with radial wings O, which are arranged in one end of one of the cases K and are opposite the dischargcopening P on the rear side ofsa d case.

B representsasectiou,which is coupled to the shaft M, extends longitudinally through the center of the other cylindrical case, and is pro vided at its inner end with radial wings T, which are similarto those prev i ously described.

S represents a pair of cylindrical cut-offs. which slide longitudinally on the shaft M and on the extension It thereof, and are arranged in the open ends of the cases K. The said cy liudrical cut-ofifs have their ends which are nearest the closed ends of the cases countersunk and adapted to receive the wings '1, so that said cylindrical cut-offs may be moved entirely over the said wings, and thereby effectually cut offcoinmunieatiou between thetubes Land the discharge-openings of the cases, as will be readily understood. Each cut-off Sis provided near its outer end with an annular peripheral groove, T.

U represents a lever,which is pivoted on the rear end of the beam D and projects rearward beyond the beam 0. Alink,V, is connected to the said lever, and has arms or straps formed at its end,which engage the grooves T of the cutoffs, and thereby the said cut-offs may be moved longitudinally in the cases K, so as to open the discharge'openings P or close the same to any desired extent by operating the lever U, as will be readily understood.

On the rear side of the beam 0 are secured the upper ends of a pair of seed-spouts, W, each of which is arranged in rear of the discharge-opening of one of the seed-cases; and from the spouts W depend branches X, which first diverge downwardly, and are then bent downward in a vertical direction to form arms Y. On the said arms are secured vertically adj ustable tubular-hoes Z, which maybe caused to operate in the ground at any desired depth.

A represents a series of arms which have their front ends hinged or pivoted to the beam O and extend rearward therefrom. The said arms are connected in pairs by U-shaped coverers B, the lower ends of which are bent at suitable angles. On the same shaft or rod which serves as the pivot for the arms A are pivoted a number of bell-crank levers, O, which have their rearward-extending ends connected to the inverted ends of U-shaped coverers.

D represents a rock-shaft, which is j ournaled in bearings on the upper side of the beam E, and is provided with an operating-lever, E, and with a number of cranks, F,which latter are connected to the short vertical arms ofthe bell-crank levers by means of rods or links G.

The operation of my invention will be readily understood. As the machineis drawn across a field the beveled edges of the wheels or disks open furrows. The seeds in the hoppers are fed through the tubesL into the cases K. The shaft M is rotated by means of the endless belt which connects it to the shaft H, thereby causing the radial wings T on the shaft and its coupled section to rotate-and consequently force seeds from the cases K into the seed spout, down which they fall into the furrows. The coverers, which travel in rear of the ma. chine, throw the dirt from opposite sides of the furrows into the same, and thereby effectually cover the seeds. By means of the bellcrank levers and the crank rock-shaft hereinbefore described the coverers may be raised from the ground when necessary, and by adjusting the cylindrical cut-off on the shaft in the cases K the quantity of seeds discharged from said cases may be regulated at will.

Having thus described my invention, I claim- 1. The combination, in a grain drill, of the frame having the shaft H, provided with the supporting wheels or disks and arranged in the center of the frame, the hopper, the standards E, supporting the same above the center of the frame, the force-feed seed-shaft, the cases in which the latter is journaled, arranged on the rear end of the frames, the downwardly-inclined pipes or tubes L, connecting said cases to the hopper, the seedspouts depending from the rear side of the frame, the pivoted arms A, extending rearward from the machine, and the U-shaped coverers connecting the rear ends of said pivoted arms in pairs, substantially as described.

2. The combination, in a grain-drill, of the FERDINAND ALBERT POLKA.

Witnesses:

E. G. BALDWIN, M. H. ROBERTS. 

